9945874 has 16 divisors (see below), whose sum is σ = 15367320. Its totient is φ = 4825600.

The previous prime is 9945853. The next prime is 9945877. The reversal of 9945874 is 4785499.

It can be written as a sum of positive squares in 4 ways, for example, as 9030025 + 915849 = 3005^2 + 957^2 .

It is not an unprimeable number, because it can be changed into a prime (9945877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10242 + ... + 11170.

Almost surely, 2^9945874 is an apocalyptic number.

9945874 is a deficient number, since it is larger than the sum of its proper divisors (5421446).

9945874 is a wasteful number, since it uses less digits than its factorization.

9945874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its digits is 362880, while the sum is 46.

The square root of 9945874 is about 3153.7079763352. The cubic root of 9945874 is about 215.0540624818.

The spelling of 9945874 in words is "nine million, nine hundred forty-five thousand, eight hundred seventy-four".